Exhaust dust testing (EDT) is a well-established environmental health monitoring solution that eliminates the use of sentinel animals. This webinar will introduce a straightforward method to collect exhaust dust within open airflow IVC racks using REPLACE™, a high binding capacity matrix. Methods and data will be presented to allow technicians, veterinarians and husbandry staff to consider how the application of EDT may be beneficial to reducing workload related to testing while improving sensitivity.